Examples: Win32: Fixed examples using RegisterClassW() since 1.89 to also call DefWindowProcW(). (#5725, #5961, #5975)

Fixes the window title from being truncated on calls to Platform_SetWindowTitle. Stops the WM_SETTEXT message that happens when calling setWindowTextW from being interpreted as ascii.

docs/CHANGELOG.txt

@@ -51,6 +51,9 @@ All changes:
 - PlotHistogram, PlotLines: Passing negative sizes honor alignment like other widgets.
 - ImDrawList: Added missing early-out in AddPolyline() and AddConvexPolyFilled() when
   color alpha is zero.
+- Examples: Win32: Fixed examples using RegisterClassW() since 1.89 to also call
+  DefWindowProcW() instead of DefWindowProc() so that title text are correctly converted
+  when application is compiled without /DUNICODE. (#5725, #5961, #5975) [@markreidvfx]
 
 
 -----------------------------------------------------------------------

examples/example_win32_directx10/main.cpp

@@ -243,5 +243,5 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
         ::PostQuitMessage(0);
         return 0;
     }
-    return ::DefWindowProc(hWnd, msg, wParam, lParam);
+    return ::DefWindowProcW(hWnd, msg, wParam, lParam);
 }

examples/example_win32_directx11/main.cpp

@@ -247,5 +247,5 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
         ::PostQuitMessage(0);
         return 0;
     }
-    return ::DefWindowProc(hWnd, msg, wParam, lParam);
+    return ::DefWindowProcW(hWnd, msg, wParam, lParam);
 }

examples/example_win32_directx12/main.cpp

@@ -462,5 +462,5 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
         ::PostQuitMessage(0);
         return 0;
     }
-    return ::DefWindowProc(hWnd, msg, wParam, lParam);
+    return ::DefWindowProcW(hWnd, msg, wParam, lParam);
 }

examples/example_win32_directx9/main.cpp

@@ -234,5 +234,5 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
         ::PostQuitMessage(0);
         return 0;
     }
-    return ::DefWindowProc(hWnd, msg, wParam, lParam);
+    return ::DefWindowProcW(hWnd, msg, wParam, lParam);
 }