Backends: Win32: internal rename.

backends/imgui_impl_win32.cpp

@@ -559,22 +559,10 @@ ImGuiKey ImGui_ImplWin32_KeyEventToImGuiKey(WPARAM wParam, LPARAM lParam)
 #define DBT_DEVNODES_CHANGED 0x0007
 #endif
 
-// Win32 message handler (process Win32 mouse/keyboard inputs, etc.)
-// Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
-// When implementing your own backend, you can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if Dear ImGui wants to use your inputs.
-// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
-// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
-// Generally you may always pass all inputs to Dear ImGui, and hide them from your application based on those two flags.
-// PS: In this Win32 handler, we use the capture API (GetCapture/SetCapture/ReleaseCapture) to be able to read mouse coordinates when dragging mouse outside of our window bounds.
-// PS: We treat DBLCLK messages as regular mouse down messages, so this code will work on windows classes that have the CS_DBLCLKS flag set. Our own example app code doesn't set this flag.
-#if 0
-// Copy this line into your .cpp file to forward declare the function.
-extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
-#endif
-
+// Helper to obtain the source of mouse messages.
 // See https://learn.microsoft.com/en-us/windows/win32/tablet/system-events-and-mouse-messages
 // Prefer to call this at the top of the message handler to avoid the possibility of other Win32 calls interfering with this.
-static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo()
+static ImGuiMouseSource ImGui_ImplWin32_GetMouseSourceFromMessageExtraInfo()
 {
     LPARAM extra_info = ::GetMessageExtraInfo();
     if ((extra_info & 0xFFFFFF80) == 0xFF515700)
@@ -584,6 +572,18 @@ static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo()
     return ImGuiMouseSource_Mouse;
 }
 
+// Win32 message handler (process Win32 mouse/keyboard inputs, etc.)
+// Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
+// When implementing your own backend, you can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if Dear ImGui wants to use your inputs.
+// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
+// Generally you may always pass all inputs to Dear ImGui, and hide them from your application based on those two flags.
+// PS: In this Win32 handler, we use the capture API (GetCapture/SetCapture/ReleaseCapture) to be able to read mouse coordinates when dragging mouse outside of our window bounds.
+// PS: We treat DBLCLK messages as regular mouse down messages, so this code will work on windows classes that have the CS_DBLCLKS flag set. Our own example app code doesn't set this flag.
+
+// Copy this line into your .cpp file to forward declare the function:
+extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+
 IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
     // Most backends don't have silent checks like this one, but we need it because WndProc are called early in CreateWindow().
@@ -599,7 +599,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
     case WM_NCMOUSEMOVE:
     {
         // We need to call TrackMouseEvent in order to receive WM_MOUSELEAVE events
-        ImGuiMouseSource mouse_source = GetMouseSourceFromMessageExtraInfo();
+        ImGuiMouseSource mouse_source = ImGui_ImplWin32_GetMouseSourceFromMessageExtraInfo();
         const int area = (msg == WM_MOUSEMOVE) ? 1 : 2;
         bd->MouseHwnd = hwnd;
         if (bd->MouseTrackedArea != area)
@@ -646,7 +646,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
     case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK:
     case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK:
     {
-        ImGuiMouseSource mouse_source = GetMouseSourceFromMessageExtraInfo();
+        ImGuiMouseSource mouse_source = ImGui_ImplWin32_GetMouseSourceFromMessageExtraInfo();
         int button = 0;
         if (msg == WM_LBUTTONDOWN || msg == WM_LBUTTONDBLCLK) { button = 0; }
         if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONDBLCLK) { button = 1; }
@@ -664,7 +664,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
     case WM_MBUTTONUP:
     case WM_XBUTTONUP:
     {
-        ImGuiMouseSource mouse_source = GetMouseSourceFromMessageExtraInfo();
+        ImGuiMouseSource mouse_source = ImGui_ImplWin32_GetMouseSourceFromMessageExtraInfo();
         int button = 0;
         if (msg == WM_LBUTTONUP) { button = 0; }
         if (msg == WM_RBUTTONUP) { button = 1; }