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Take an adopted WGL context's pixel format from the DC it is current on #404

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Merged
jdm merged 1 commit into from
Oct 29, 2026
Merged

Take an adopted WGL context's pixel format from the DC it is current on #404

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6 changes: 5 additions & 1 deletion src/wgl/device.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,7 @@ use winapi::um::handleapi::INVALID_HANDLE_VALUE;
use winapi::um::libloaderapi;
use winapi::um::wingdi::{self, PIXELFORMATDESCRIPTOR};
use winapi::um::wingdi::{
wglDeleteContext, wglGetCurrentContext, wglGetProcAddress, wglMakeCurrent,
wglDeleteContext, wglGetCurrentContext, wglGetCurrentDC, wglGetProcAddress, wglMakeCurrent,
};
use winapi::um::winuser::{self, COLOR_BACKGROUND, CS_OWNDC, MSG, WM_CLOSE};
use winapi::um::winuser::{WNDCLASSA, WS_OVERLAPPEDWINDOW};
Expand Down Expand Up @@ -405,6 +405,10 @@ impl WglDevice {
let gl = {
let hidden_window_dc = hidden_window.get_dc();
let dc = hidden_window_dc.dc;
// `wglMakeCurrent` needs the DC to have the context's pixel format.
if wglGetCurrentContext() == native_context.0 {
set_dc_pixel_format(dc, wingdi::GetPixelFormat(wglGetCurrentDC()));
}
let _guard = CurrentContextGuard::new();
let ok = wglMakeCurrent(dc, native_context.0);
assert_ne!(ok, FALSE);
Expand Down
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