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Ignore the "Class already exists" error in multiple-window application

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Krzysztof Kondrak 2015-12-28 16:50:51 +01:00 • committed by Krzysztof Kondrak
parent 6fd476783c
commit de47861fe3
1 changed files with 8 additions and 2 deletions
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6
src/windows.rs
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@ -249,9 +249,15 @@ impl Window {
}; };
if user32::RegisterClassW(&class) == 0 { if user32::RegisterClassW(&class) == 0 {
let err_code = kernel32::GetLastError() as u32;
// ignore the "Class already exists" error for multiple windows
if err_code != 1410
{
println!("Unable to register class, error {}", kernel32::GetLastError() as u32); println!("Unable to register class, error {}", kernel32::GetLastError() as u32);
return None; return None;
} }
}
let new_width = width * scale_factor as usize; let new_width = width * scale_factor as usize;
let new_height = height * scale_factor as usize; let new_height = height * scale_factor as usize;