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Feature: Hide cursor #430

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Feature: Hide cursor #430

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257469c
Merge pull request #416 from OneLoneCoder/develop
OneLoneCoder Sep 23, 2025
b3c9d8a
Add a function to hide cursor
DsgnrFH Jun 30, 2026
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42 changes: 42 additions & 0 deletions olcPixelGameEngine.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1294,6 +1294,7 @@ namespace olc
virtual olc::rcode SetWindowTitle(const std::string& s) = 0;
virtual olc::rcode ShowWindowFrame(const bool bShowFrame = true) = 0;
virtual olc::rcode SetWindowSize(const olc::vi2d& vWindowPos, const olc::vi2d& vWindowSize) = 0;
virtual olc::rcode SetCursorVisible(const bool bVisible = true) { return olc::rcode::OK; }
virtual olc::rcode StartSystemEventLoop() = 0;
virtual olc::rcode HandleSystemEvent() = 0;
static olc::PixelGameEngine* ptrPGE;
Expand Down Expand Up @@ -1356,6 +1357,7 @@ namespace olc
// Muck about with the GUI
olc::rcode SetWindowSize(const olc::vi2d& vPos, const olc::vi2d& vSize);
olc::rcode ShowWindowFrame(const bool bShowFrame);
olc::rcode SetCursorVisible(const bool bVisible = true);

public: // Utility
// Returns the width of the screen in "pixels"
Expand Down Expand Up @@ -4512,6 +4514,14 @@ namespace olc
return olc::FAIL;
}

olc::rcode PixelGameEngine::SetCursorVisible(const bool bVisible)
{
if (platform)
return platform->SetCursorVisible(bVisible);
else
return olc::FAIL;
}


// Externalised API
void PixelGameEngine::olc_UpdateViewport()
Expand Down Expand Up @@ -6688,6 +6698,7 @@ namespace olc
private:
HWND olc_hWnd = nullptr;
std::wstring wsAppName;
bool olc_bCursorVisible = true;
inline static olc::vi2d vWinPos;
inline static olc::vi2d vWinSize;

Expand Down Expand Up @@ -6877,6 +6888,16 @@ namespace olc
return olc::OK;
}

virtual olc::rcode SetCursorVisible(const bool bVisible = true) override
{
if (bVisible != olc_bCursorVisible)
{
olc_bCursorVisible = bVisible;
ShowCursor(bVisible);
}
return olc::OK;
}

olc::rcode SetWindowSize(const olc::vi2d& vWindowPos, const olc::vi2d& vWindowSize)
{
vWinPos = vWindowPos;
Expand Down Expand Up @@ -7177,6 +7198,27 @@ namespace olc
return olc::rcode::OK;
}

virtual olc::rcode SetCursorVisible(const bool bVisible = true) override
{
using namespace X11;
if (bVisible)
{
XUndefineCursor(olc_Display, olc_Window);
}
else
{
static char noData[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
XColor black{ 0 };
Pixmap blankBitmap = XCreateBitmapFromData(olc_Display, olc_Window, noData, 8, 8);
Cursor hiddenCursor = XCreatePixmapCursor(olc_Display, blankBitmap, blankBitmap, &black, &black, 0, 0);
XDefineCursor(olc_Display, olc_Window, hiddenCursor);
XFreeCursor(olc_Display, hiddenCursor);
XFreePixmap(olc_Display, blankBitmap);
}
XFlush(olc_Display);
return olc::rcode::OK;
}


virtual olc::rcode StartSystemEventLoop() override
{
Expand Down