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get display DPI info to scale mouse movement

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This commit is contained in:
Quantum
2021-01-04 16:01:24 -05:00
committed by Geoffrey McRae
parent 0bd5f0b2f1
commit 7e4d323427
10 changed files with 123 additions and 36 deletions
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13
host/platform/Windows/src/platform.c
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@@ -226,6 +226,18 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
// setup a handler for ctrl+c
SetConsoleCtrlHandler(CtrlHandler, TRUE);
// enable high DPI awareness
// this is required for DXGI 1.5 support to function and also capturing desktops with high DPI
DECLARE_HANDLE(DPI_AWARENESS_CONTEXT);
#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((DPI_AWARENESS_CONTEXT)-4)
typedef BOOL (*User32_SetProcessDpiAwarenessContext)(DPI_AWARENESS_CONTEXT value);
HMODULE user32 = GetModuleHandle("user32.dll");
User32_SetProcessDpiAwarenessContext fn;
fn = (User32_SetProcessDpiAwarenessContext)GetProcAddress(user32, "SetProcessDpiAwarenessContext");
if (fn)
fn(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
// create a message window so that our message pump works
WNDCLASSEX wx = {};
wx.cbSize = sizeof(WNDCLASSEX);
@@ -249,7 +261,6 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
app.messageWnd = CreateWindowEx(0, MAKEINTATOM(class), NULL, 0, 0, 0, 0, 0, NULL, NULL, hInstance, NULL);
// this is needed so that unprivileged processes can send us this message
HMODULE user32 = GetModuleHandle("user32.dll");
_ChangeWindowMessageFilterEx = (PChangeWindowMessageFilterEx)GetProcAddress(user32, "ChangeWindowMessageFilterEx");
if (_ChangeWindowMessageFilterEx)
_ChangeWindowMessageFilterEx(app.messageWnd, app.trayRestartMsg, MSGFLT_ALLOW, NULL);