mirror of
https://github.com/italicsjenga/rust_minifb.git
synced 2025-01-26 02:36:32 +11:00
48 lines
1.4 KiB
Rust
48 lines
1.4 KiB
Rust
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extern crate user;
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pub fn open(name: &str, width: usize, height: usize) -> bool {
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let s = CString::new(name).unwrap();
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unsafe {
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let class = winapi::WNDCLASSEXA {
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cbSize: mem::size_of::<winapi::WNDCLASSEXW>() as winapi::UINT,
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style: winapi::CS_HREDRAW | winapi::CS_VREDRAW | winapi::CS_OWNDC,
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lpfnWndProc: Some(callback::callback),
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cbClsExtra: 0,
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cbWndExtra: 0,
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hInstance: kernel32::GetModuleHandleA(ptr::null()),
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hIcon: ptr::null_mut(),
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hCursor: ptr::null_mut(),
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hbrBackground: ptr::null_mut(),
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lpszMenuName: ptr::null(),
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lpszClassName: s.as_ptr(),
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hIconSm: ptr::null_mut(),
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};
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user32::RegisterClassExA(&class);
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let mut rect = winapi::RECT {
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left: 0, right: width as winapi::LONG,
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top: 0, bottom: height as winapi::LONG,
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}
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user32::AdjustWindowRect(&mut rect, winapi::WS_POPUP | winapi::WS_SYSMENU | winapi::WS_CAPTION, 0);
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rect.right -= rect.left;
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rect.bottom -= rect.top;
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let handle = user32::CreateWindowExA(0,
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s.as_ptr(), s.as_ptr(),
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winapi::WS_OVERLAPPEDWINDOW & ~winapi::WS_MAXIMIZEBOX & ~winapi::WS_TICKFRAME,
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winapi::CW_USEDEFAULT, winapi::CW_USEDEFAULT,
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rect.right, rect.bottom,
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ptr::null_mut(), ptr::null_mut(), ptr::null_mut(), ptr::null_mut());
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if handle.is_null() {
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return false;
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}
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user32::ShowWindow(handle, winapi::SW_NORMAL);
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}
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