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Merge pull request #14 from MirkoCovizzi/issue-13

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Windows: Add message box
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Mirko Covizzi 2020-06-08 23:07:43 +02:00 • committed by GitHub
commit 45ea5387b4
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1 changed files with 31 additions and 20 deletions
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51
src/win/window.rs
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@ -14,15 +14,41 @@ use self::winapi::um::wingdi::{
PIXELFORMATDESCRIPTOR, PIXELFORMATDESCRIPTOR,
}; };
use self::winapi::um::winuser::{ use self::winapi::um::winuser::{
CreateWindowExA, DefWindowProcA, DispatchMessageA, GetDC, PeekMessageA, PostQuitMessage, CreateWindowExA, DefWindowProcA, DispatchMessageA, GetDC, MessageBoxA, PeekMessageA,
RegisterClassA, TranslateMessage, CS_HREDRAW, CS_OWNDC, CS_VREDRAW, CW_USEDEFAULT, MSG, PostQuitMessage, RegisterClassA, TranslateMessage, CS_HREDRAW, CS_OWNDC, CS_VREDRAW,
PM_REMOVE, WM_DESTROY, WM_QUIT, WNDCLASSA, WS_CAPTION, WS_CHILD, WS_CLIPSIBLINGS, CW_USEDEFAULT, MB_ICONERROR, MB_OK, MB_TOPMOST, MSG, PM_REMOVE, WM_DESTROY, WM_QUIT, WNDCLASSA,
WS_MAXIMIZEBOX, WS_MINIMIZEBOX, WS_POPUPWINDOW, WS_SIZEBOX, WS_VISIBLE, WS_CAPTION, WS_CHILD, WS_CLIPSIBLINGS, WS_MAXIMIZEBOX, WS_MINIMIZEBOX, WS_POPUPWINDOW,
WS_SIZEBOX, WS_VISIBLE,
}; };
use crate::Parent::WithParent; use crate::Parent::WithParent;
use crate::WindowOpenOptions; use crate::WindowOpenOptions;
unsafe fn message_box(title: &str, msg: &str) {
let title = (title.to_owned() + "\0").as_ptr() as *const i8;
let msg = (msg.to_owned() + "\0").as_ptr() as *const i8;
MessageBoxA(null_mut(), msg, title, MB_ICONERROR | MB_OK | MB_TOPMOST);
}
unsafe fn generate_guid() -> String {
let mut guid: GUID = std::mem::zeroed();
CoCreateGuid(&mut guid);
format!(
"{:0X}-{:0X}-{:0X}-{:0X}{:0X}-{:0X}{:0X}{:0X}{:0X}{:0X}{:0X}\0",
guid.Data1,
guid.Data2,
guid.Data3,
guid.Data4[0],
guid.Data4[1],
guid.Data4[2],
guid.Data4[3],
guid.Data4[4],
guid.Data4[5],
guid.Data4[6],
guid.Data4[7]
)
}
pub struct Window; pub struct Window;
impl Window { impl Window {
@ -30,22 +56,7 @@ impl Window {
pub fn open(options: WindowOpenOptions) -> Self { pub fn open(options: WindowOpenOptions) -> Self {
unsafe { unsafe {
// We generate a unique name for the new window class to prevent name collisions // We generate a unique name for the new window class to prevent name collisions
let mut guid: GUID = std::mem::zeroed(); let class_name = format!("Baseview-{}", generate_guid());
CoCreateGuid(&mut guid);
let class_name = format!(
"Baseview-{:0X}-{:0X}-{:0X}-{:0X}{:0X}-{:0X}{:0X}{:0X}{:0X}{:0X}{:0X}\0",
guid.Data1,
guid.Data2,
guid.Data3,
guid.Data4[0],
guid.Data4[1],
guid.Data4[2],
guid.Data4[3],
guid.Data4[4],
guid.Data4[5],
guid.Data4[6],
guid.Data4[7]
);
let wnd_class = WNDCLASSA { let wnd_class = WNDCLASSA {
// todo: for OpenGL, will use it later // todo: for OpenGL, will use it later