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Windows: Fix WM_NCCALCSIZE behaviour for frameless windows on multiple display systems

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Previously, maximising a frameless window on a secondary display could
result in the window's coordinates being computed incorrectly, leading
to graphical glitches.
This commit is contained in:
reuk 2024-08-29 17:15:59 +01:00
parent 25e2fa44ff
commit faf6d9976a
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GPG key ID: FCB43929F012EE5C
1 changed files with 12 additions and 3 deletions
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15
modules/juce_gui_basics/native/juce_Windowing_windows.cpp
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@ -3938,8 +3938,17 @@ private:
// so that the client area exactly fills the available space.
if (isFullScreen())
{
const auto padX = -param->left;
const auto padY = -param->top;
const auto monitor = MonitorFromWindow (hwnd, MONITOR_DEFAULTTONULL);
if (monitor == nullptr)
return 0;
MONITORINFOEX info{};
info.cbSize = sizeof (info);
GetMonitorInfo (monitor, &info);
const auto padX = info.rcMonitor.left - param->left;
const auto padY = info.rcMonitor.top - param->top;
param->left += padX;
param->right -= padX;
@ -5242,7 +5251,7 @@ private:
public:
LowLevelGraphicsContext* startFrame (HWND hwnd, float scale, const RectangleList<int>& dirty)
{
RECT r;
RECT r{};
GetClientRect (hwnd, &r);
const auto w = r.right - r.left;