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Add set_icon() method to set a window icon at runtime (#274)

Browse source 
* Add set_icon() for Windows

* Start x11 icon method

* Add set_icon() for X11

* Add unimplemented message

* Add Icon class for abstraction

* Adjust example in docs

* Remove CStrings from X11 because of heap allocations

* Fix rustfmt

* Revert accidental changes to image.rs

* Fix doc error
This commit is contained in:
Kevin K 2022-01-30 18:29:12 +01:00 committed by GitHub
parent ccb2ab474e
commit 9a435460b0
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
9 changed files with 366 additions and 2 deletions
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179
examples/icon.rs Normal file
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@ -0,0 +1,179 @@
#[cfg(target_os = "linux")]
use std::convert::TryFrom;
#[cfg(target_os = "windows")]
use std::str::FromStr;
use minifb::{Icon, Key, Window, WindowOptions};
fn main() {
let mut window = Window::new(
"Window Icon Test - Press ESC to exit",
300,
300,
WindowOptions {
resize: true,
..WindowOptions::default()
},
)
.expect("Unable to open Window");
#[cfg(target_os = "windows")]
window.set_icon(Icon::from_str("resources/icon256.ico").unwrap());
#[cfg(target_os = "linux")]
{
let test: [u64; 1284] = [
16, 16, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 338034905, 3657433343, 0, 184483840, 234881279, 3053453567,
3221225727, 1879048447, 0, 0, 0, 0, 0, 0, 0, 1224737023, 3305111807, 3875537151, 0, 0,
2063597823, 1291845887, 0, 67109119, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 50266112, 3422552319, 0, 0, 3070230783,
2063597823, 2986344703, 771752191, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3422552319, 0, 0,
3372220671, 1509949695, 704643327, 3355443455, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 0, 3422552319, 0,
134152192, 3187671295, 251658495, 0, 3439329535, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3422552319,
0, 0, 2332033279, 1342177535, 167772415, 3338666239, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 0, 3422552319,
0, 0, 436207871, 3322085628, 3456106751, 1375731967, 4278255360, 4026597120,
3758161664, 3489726208, 3204513536, 2952855296, 2684419840, 2399207168, 2130771712,
1845559040, 1593900800, 1308688128, 1040252672, 755040000, 486604544, 234946304,
4278255360, 4043374336, 3774938880, 3506503424, 3221290752, 2952855296, 2667642624,
2399207168, 2130771712, 1862336256, 1627453957, 1359017481, 1073805064, 788591627,
503379721, 218169088, 4278255360, 4043374336, 3758161664, 3506503424, 3221290752,
2952855296, 2684419840, 2415984384, 2130771712, 1862336256, 1577123584, 1308688128,
1040252672, 755040000, 486604544, 218169088, 4278190335, 4026532095, 3758096639,
3489661183, 3221225727, 2952790271, 2667577599, 2415919359, 2130706687, 1862271231,
1593835775, 1325400319, 1056964863, 771752191, 520093951, 234881279, 4278190335,
4026532095, 3758096639, 3489661183, 3221225727, 2952790271, 2667577599, 2415919359,
2130706687, 1862271231, 1593835775, 1325400319, 1056964863, 771752191, 503316735,
234881279, 4278190335, 4026532095, 3758096639, 3489661183, 3221225727, 2952790271,
2684354815, 2399142143, 2130706687, 1862271231, 1593835775, 1325400319, 1040187647,
771752191, 520093951, 234881279, 4294901760, 4043243520, 3774808064, 3506372608,
3221159936, 2952724480, 2684289024, 2399076352, 2147418112, 1862205440, 1593769984,
1308557312, 1040121856, 771686400, 503250944, 234815488, 4294901760, 4060020736,
3758030848, 3506372608, 3221159936, 2952724480, 2684289024, 2415853568, 2130640896,
1862205440, 1593769984, 1308557312, 1040121856, 771686400, 503250944, 234815488,
4294901760, 4043243520, 3774808064, 3489595392, 3237937152, 2952724480, 2684289024,
2415853568, 2147418112, 1862205440, 1593769984, 1325334528, 1056899072, 788463616,
503250944, 234815488, 32, 32, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 0, 0, 0, 0, 0, 0, 0, 0, 0,
268369920, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 1509949695, 3120562431,
4009754879, 4194304255, 3690987775, 2130706687, 83886335, 0, 50331903, 1694499071,
3170894079, 3992977663, 4211081471, 3657433343, 1879048447, 16777471, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3087007999, 2281701631, 1191182591, 1040187647,
2030043391, 4127195391, 2566914303, 0, 16777471, 3254780159, 2181038335, 1191182591,
973078783, 2030043391, 4177527039, 2130706687, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 0, 0, 0, 0, 0,
2214592767, 4093640959, 0, 0, 0, 0, 0, 0, 0, 2298478847, 3909091583, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2214592767, 3607101695, 0, 0, 0, 0, 0, 0,
0, 1946157311, 4093640959, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 0, 0, 536871167, 1191182591,
2281701631, 3019899135, 637534463, 0, 0, 0, 100597760, 251592704, 33488896, 0,
3321889023, 2919235839, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2550137087, 4278190335, 4278190335, 3405775103, 570425599, 0, 0, 0, 0, 0, 0,
2046820607, 4043309311, 620757247, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 33488896, 0, 0, 218104063,
1291845887, 3841982719, 3388997887, 0, 0, 0, 0, 0, 1996488959, 4093640959, 1073742079,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1761607935,
4278190335, 150995199, 0, 0, 67109119, 2550137087, 3909091583, 889192703, 0, 0,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 0, 0, 0, 0, 0, 2181038335, 3925868799, 0, 0, 218104063,
3070230783, 3623878911, 570425599, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 805306623, 3288334591, 1795162367, 1040187647, 1023410431, 2231369983, 4211081471,
1694499071, 0, 369099007, 3456106751, 3825205503, 1174405375, 872415487, 872415487,
872415487, 872415487, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4293984270, 2046951677, 3422552319, 4110418175,
4177527039, 3405775103, 1409286399, 0, 0, 1409286399, 4278190335, 4278190335,
4278190335, 4278190335, 4278190335, 4278190335, 4278190335, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760, 4294901760,
4294901760, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
4278255360, 4144037632, 4009819904, 3875602176, 3741384448, 3607166720, 3472948992,
3338731264, 3204513536, 3053518592, 2936078080, 2801860352, 2650865408, 2516647680,
2382429952, 2264989440, 2113994496, 1996553984, 1862336256, 1728118528, 1577123584,
1459683072, 1325465344, 1191247616, 1040252672, 922812160, 771817216, 637599488,
503381760, 385941248, 234946304, 100728576, 4278255360, 4144037632, 4009819904,
3875602176, 3724607232, 3607166720, 3472948992, 3338731264, 3204513536, 3070295808,
2936078080, 2801860352, 2667642624, 2516647680, 2399207168, 2264989440, 2130771712,
1996553984, 1845559040, 1728118528, 1593900800, 1459683072, 1308688128, 1191247616,
1057029888, 922812160, 788594432, 637599488, 503381760, 369164032, 234946304,
117505792, 4278255360, 4144037632, 4009819904, 3875602176, 3741384448, 3607166720,
3472948992, 3338731264, 3204513536, 3053518592, 2919300864, 2801860352, 2650865408,
2533424896, 2399207168, 2264989440, 2113994496, 1996553984, 1862336256, 1728118528,
1593900800, 1459683072, 1325465344, 1191247616, 1040252672, 906034944, 771817216,
654376704, 503381760, 369164032, 234946304, 117505792, 4278255360, 4144037632,
4009819904, 3858824960, 3741384448, 3607166720, 3472948992, 3338731264, 3204513536,
3070295808, 2936078080, 2801860352, 2667642624, 2533424896, 2382429952, 2264989440,
2130771712, 1979776768, 1862336256, 1728118528, 1577123584, 1442905856, 1325465344,
1191247616, 1040252672, 922812160, 771817216, 637599488, 503381760, 369164032,
234946304, 100728576, 4278255360, 4144037632, 4009819904, 3875602176, 3741384448,
3607166720, 3472948992, 3338731264, 3204513536, 3070295808, 2919300864, 2801860352,
2667642624, 2533424896, 2399207168, 2264989440, 2113994496, 1996553984, 1862336256,
1728118528, 1593900800, 1442905856, 1342241795, 1174470400, 1057029888, 906034944,
788594432, 654376704, 503381760, 385941248, 251723520, 100728576, 4278190335,
4160749823, 4026532095, 3892314367, 3741319423, 3623878911, 3472883967, 3338666239,
3221225727, 3070230783, 2952790271, 2818572543, 2667577599, 2533359871, 2399142143,
2264924415, 2147483903, 1996488959, 1862271231, 1728053503, 1593835775, 1459618047,
1325400319, 1191182591, 1056964863, 922747135, 788529407, 654311679, 520093951,
385876223, 251658495, 117440767, 4278190335, 4160749823, 4026532095, 3892314367,
3741319423, 3623878911, 3489661183, 3355443455, 3221225727, 3087007999, 2936013055,
2801795327, 2667577599, 2533359871, 2399142143, 2281701631, 2130706687, 1996488959,
1862271231, 1728053503, 1593835775, 1459618047, 1325400319, 1191182591, 1056964863,
922747135, 788529407, 654311679, 520093951, 385876223, 234881279, 100663551,
4278190335, 4160749823, 4026532095, 3892314367, 3758096639, 3623878911, 3489661183,
3355443455, 3221225727, 3087007999, 2936013055, 2801795327, 2667577599, 2550137087,
2415919359, 2264924415, 2130706687, 1996488959, 1862271231, 1728053503, 1593835775,
1459618047, 1325400319, 1191182591, 1056964863, 922747135, 788529407, 654311679,
503316735, 369099007, 251658495, 100663551, 4278190335, 4160749823, 4026532095,
3892314367, 3758096639, 3623878911, 3489661183, 3355443455, 3204448511, 3087007999,
2936013055, 2818572543, 2667577599, 2533359871, 2399142143, 2264924415, 2130706687,
1996488959, 1879048447, 1728053503, 1593835775, 1459618047, 1325400319, 1191182591,
1056964863, 922747135, 788529407, 654311679, 520093951, 385876223, 251658495,
117440767, 4278190335, 4160749823, 4026532095, 3892314367, 3758096639, 3623878911,
3489661183, 3355443455, 3221225727, 3087007999, 2952790271, 2818572543, 2667577599,
2533359871, 2399142143, 2264924415, 2147483903, 2013266175, 1862271231, 1744830719,
1610612991, 1476395263, 1342177535, 1191182591, 1056964863, 922747135, 788529407,
654311679, 520093951, 385876223, 251658495, 100663551, 4294901760, 4160684032,
4026466304, 3909025792, 3774808064, 3623813120, 3489595392, 3355377664, 3237937152,
3103719424, 2952724480, 2818506752, 2684289024, 2550071296, 2415853568, 2281635840,
2147418112, 2013200384, 1878982656, 1744764928, 1593769984, 1476329472, 1325334528,
1207894016, 1056899072, 939458560, 788463616, 654245888, 520028160, 385810432,
251592704, 117374976, 4294901760, 4177461248, 4043243520, 3909025792, 3774808064,
3640590336, 3506372608, 3355377664, 3221159936, 3086942208, 2952724480, 2818506752,
2701066240, 2550071296, 2415853568, 2281635840, 2147418112, 2013200384, 1878982656,
1727987712, 1610547200, 1476329472, 1325334528, 1191116800, 1073676288, 922681344,
788463616, 654245888, 520028160, 385810432, 251592704, 100597760, 4294901760,
4177461248, 4043243520, 3909025792, 3774808064, 3640590336, 3489595392, 3372154880,
3237937152, 3103719424, 2952724480, 2818506752, 2700935170, 2550071296, 2415853568,
2281635840, 2147418112, 2013200384, 1878982656, 1744764928, 1610547200, 1459552256,
1342111744, 1191116800, 1056899072, 922681344, 788463616, 671023104, 520028160,
385810432, 251592704, 100597760, 4294901760, 4177461248, 4043243520, 3909025792,
3774808064, 3640590336, 3489595392, 3372154880, 3237937152, 3086942208, 2969501696,
2818506752, 2684289024, 2550071296, 2432630784, 2281635840, 2147418112, 2013200384,
1862205440, 1744764928, 1610547200, 1476329472, 1342111744, 1191116800, 1056899072,
922681344, 788463616, 654245888, 520028160, 385810432, 251592704, 117374976,
4294901760, 4177461248, 4043243520, 3909025792, 3774808064, 3623813120, 3506372608,
3372154880, 3237937152, 3103719424, 2952724480, 2835283968, 2684289024, 2550071296,
2432630784, 2281635840, 2147418112, 2046492676, 1862205440, 1744764928, 1610547200,
1476329472, 1342111744, 1207894016, 1056899072, 939458560, 788463616, 654245888,
536281096, 385810432, 251592704, 134152192,
];
window.set_icon(Icon::try_from(&test[..]).unwrap());
}
while window.is_open() && !window.is_key_down(Key::Escape) {
window.update();
}
}

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51
src/icon.rs Normal file
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@ -0,0 +1,51 @@
#[cfg(target_os = "linux")]
use std::convert::TryFrom;
#[cfg(target_os = "windows")]
use std::{ffi::OsStr, os::windows::prelude::OsStrExt, str::FromStr};
///
/// Represents a window icon
///
/// Different under Windows, Linux and MacOS
///
/// **Windows**: Icon can be created from a relative path string
///
/// **Linux / X11:** Icon can be created from an ARGB buffer
///
///
#[derive(Clone, Copy, Debug)]
pub enum Icon {
Path(*const u16),
Buffer(*const u64, u32),
}
#[cfg(target_os = "windows")]
impl FromStr for Icon {
type Err = &'static str;
fn from_str(s: &str) -> Result<Self, Self::Err> {
if s.len() == 0 {
return Err("Path to icon cannot be empty!");
}
let v: Vec<u16> = OsStr::new(s)
.encode_wide()
.chain(Some(0).into_iter())
.collect();
Ok(Icon::Path(v.as_ptr()))
}
}
#[cfg(target_os = "linux")]
impl TryFrom<&[u64]> for Icon {
type Error = &'static str;
fn try_from(value: &[u64]) -> Result<Self, Self::Error> {
if value.len() == 0 {
return Err("ARGB buffer cannot be empty!");
}
Ok(Icon::Buffer(value.as_ptr(), value.len() as u32))
}
}

32
src/lib.rs
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@ -99,11 +99,13 @@ pub trait InputCallback {
mod error;
pub use self::error::Error;
pub type Result<T> = std::result::Result<T, Error>;
pub use icon::Icon;
pub use raw_window_handle::HasRawWindowHandle;
mod key;
pub use key::Key;
mod buffer_helper;
mod icon;
mod key_handler;
mod mouse_handler;
mod os;
@ -254,6 +256,36 @@ impl Window {
self.0.set_title(title)
}
///
/// Sets the icon of the window after creation.
///
/// The file path has to be relative to the current working directory.
///
/// **Windows:** Has to be a `.ico` file. To also set the icon of the `.exe` file, see the `rc.exe` tool
///
/// **Linux:**
/// - X11: Needs a `u64` buffer with ARGB data
/// - Wayland: *not implemented* (use a `.desktop` file)
///
/// **MacOS:**
///
/// **RedoxOS:** *not implemented*
///
/// # Examples
///
/// ```no_run
/// # use minifb::*;
/// # use std::str::FromStr;
/// let mut window = Window::new("Test", 640, 400, WindowOptions::default()).unwrap();
///
/// #[cfg(target_os = "windows")]
/// window.set_icon(Icon::from_str("src/icon.ico").unwrap());
/// ```
///
pub fn set_icon(&mut self, icon: Icon) {
self.0.set_icon(icon)
}
///
/// Returns the native handle for a window which is an opaque pointer/handle which
/// dependens on the current operating system:

6
src/os/macos/mod.rs
View file

@ -7,6 +7,7 @@ use crate::Result;
use crate::{Key, KeyRepeat, MouseButton, MouseMode, Scale, WindowOptions};
// use MenuItem;
use crate::buffer_helper;
use crate::icon::Icon;
use crate::mouse_handler;
use crate::window_flags;
use crate::InputCallback;
@ -325,6 +326,11 @@ impl Window {
}
}
#[inline]
pub fn set_icon(&mut self, _icon: Icon) {
unimplemented!("Currently not implemented on MacOS!")
}
#[inline]
pub fn set_rate(&mut self, rate: Option<std::time::Duration>) {
self.update_rate.set_rate(rate);

12
src/os/posix/mod.rs
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@ -14,6 +14,7 @@ mod wayland;
#[cfg(feature = "x11")]
mod x11;
use crate::icon::Icon;
use crate::Result;
use crate::{CursorStyle, MenuHandle, UnixMenu};
use crate::{InputCallback, Key, KeyRepeat, MouseButton, MouseMode, WindowOptions};
@ -66,6 +67,17 @@ impl Window {
}
}
pub fn set_icon(&mut self, icon: Icon) {
match *self {
#[cfg(feature = "x11")]
Window::X11(ref mut w) => w.set_icon(icon),
#[cfg(feature = "wayland")]
Window::Wayland(ref mut _w) => {
unimplemented!("Cannot set icons at runtime on Wayland, create a .desktop file!")
}
}
}
pub fn update_with_buffer_stride(
&mut self,
buffer: &[u32],

23
src/os/posix/x11.rs
View file

@ -19,6 +19,7 @@ use std::os::raw::{c_char, c_int, c_long, c_uchar, c_uint, c_ulong};
use std::ptr;
use crate::buffer_helper;
use crate::icon::Icon;
use crate::mouse_handler;
use super::common::Menu;
@ -606,6 +607,28 @@ impl Window {
}
}
#[inline]
pub fn set_icon(&mut self, icon: Icon) {
// XChangeProperty
let net_string_ptr = b"_NET_WM_ICON\0".as_ptr() as *const i8;
let cardinal_ptr = b"CARDINAL\0".as_ptr() as *const i8;
unsafe {
if let Icon::Buffer(ptr, len) = icon {
let _ = (self.d.lib.XChangeProperty)(
self.d.display,
self.handle,
(self.d.lib.XInternAtom)(self.d.display, net_string_ptr, xlib::False),
(self.d.lib.XInternAtom)(self.d.display, cardinal_ptr, xlib::False),
32,
xlib::PropModeReplace,
ptr as *const u8,
len as c_int,
);
}
}
}
#[inline]
pub fn get_window_handle(&self) -> *mut raw::c_void {
self.handle as *mut raw::c_void

6
src/os/redox/mod.rs
View file

@ -4,6 +4,7 @@ use crate::os::redox::orbclient::Renderer;
use crate::buffer_helper;
use crate::error::Error;
use crate::icon::Icon;
use crate::key_handler::KeyHandler;
use crate::mouse_handler;
use crate::InputCallback;
@ -13,6 +14,7 @@ use crate::{Key, KeyRepeat};
use crate::{MenuHandle, MenuItem, MenuItemHandle, UnixMenu, UnixMenuItem};
use crate::{Scale, WindowOptions};
use orbclient::Renderer;
use std::cmp;
use std::os::raw;
@ -96,6 +98,10 @@ impl Window {
self.window.set_title(title)
}
pub fn set_icon(&mut self, _icon: Icon) {
unimplemented!("Currenty not implemented on RedoxOS")
}
pub fn get_window_handle(&self) -> *mut raw::c_void {
0 as *mut raw::c_void
}

59
src/os/windows/mod.rs
View file

@ -3,6 +3,7 @@
const INVALID_ACCEL: usize = 0xffffffff;
use crate::error::Error;
use crate::icon::Icon;
use crate::key_handler::KeyHandler;
use crate::rate::UpdateRate;
use crate::Result;
@ -21,13 +22,16 @@ use std::os::windows::ffi::OsStrExt;
use std::ptr;
use winapi::shared::basetsd;
use winapi::shared::minwindef;
use winapi::shared::minwindef::{self, LPARAM, WPARAM};
use winapi::shared::ntdef;
use winapi::shared::windef;
use winapi::um::errhandlingapi;
use winapi::um::fileapi::GetFullPathNameW;
use winapi::um::libloaderapi;
use winapi::um::wingdi;
use winapi::um::winuser;
use winapi::um::winuser::{
self, ICON_BIG, ICON_SMALL, IMAGE_ICON, LR_DEFAULTSIZE, LR_LOADFROMFILE, WM_SETICON,
};
// Wrap this so we can have a proper numbef of bmiColors to write in
#[repr(C)]
@ -625,6 +629,57 @@ impl Window {
}
}
#[inline]
pub fn set_icon(&mut self, icon: Icon) {
unsafe {
if let Icon::Path(s_pointer) = icon {
let mut buffer: Vec<u16> = Vec::new();
// call once to get the size of the buffer
let return_value =
GetFullPathNameW(s_pointer, 0, buffer.as_mut_ptr(), std::ptr::null_mut());
// adjust size of the buffer
buffer.reserve(return_value as usize);
let _ = GetFullPathNameW(
s_pointer,
return_value,
buffer.as_mut_ptr(),
std::ptr::null_mut(),
);
let path = buffer.as_ptr();
// cx and cy are 0 so Windows uses the size of the resource
let icon = winapi::um::winuser::LoadImageW(
std::ptr::null_mut(),
path,
IMAGE_ICON,
0,
0,
LR_DEFAULTSIZE | LR_LOADFROMFILE,
);
if let Some(handle) = self.window {
winapi::um::winuser::SendMessageW(
handle,
WM_SETICON,
ICON_SMALL as WPARAM,
icon as LPARAM,
);
winapi::um::winuser::SendMessageW(
handle,
WM_SETICON,
ICON_BIG as WPARAM,
icon as LPARAM,
);
}
}
}
}
#[inline]
pub fn get_window_handle(&self) -> *mut raw::c_void {
self.window.unwrap() as *mut raw::c_void