Create morewindows.c

firststeps/morewindows.c

@@ -0,0 +1,104 @@
+#include <windows.h>
+
+LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
+LRESULT CALLBACK PanelProc(HWND, UINT, WPARAM, LPARAM);
+
+void RegisterRedPanelClass(void);
+void RegisterBluePanelClass(void);
+
+
+int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
+                    PWSTR lpCmdLine, int nCmdShow) {
+    MSG  msg;    
+    WNDCLASSW wc = {0};
+    wc.lpszClassName = L"Windows";
+    wc.hInstance     = hInstance;
+    wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
+    wc.lpfnWndProc   = WndProc;
+    wc.hCursor       = LoadCursor(0, IDC_ARROW);
+  
+    RegisterClassW(&wc);
+    CreateWindowW(wc.lpszClassName, L"Windows",
+                  WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+                  100, 100, 250, 180, 0, 0, hInstance, 0);  
+
+    while (GetMessage(&msg, NULL, 0, 0)) {
+  
+        TranslateMessage(&msg);
+        DispatchMessage(&msg);
+    }
+
+    return (int) msg.wParam;
+}
+
+LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, 
+    WPARAM wParam, LPARAM lParam) {    
+    
+    switch(msg) {
+  
+        case WM_CREATE:
+
+            RegisterRedPanelClass();
+
+            CreateWindowW(L"RedPanelClass", NULL, 
+                          WS_CHILD | WS_VISIBLE,
+                          20, 20, 80, 80,
+                          hwnd, (HMENU) 1, NULL, NULL);
+
+            RegisterBluePanelClass();
+
+            CreateWindowW(L"BluePanelClass", NULL, 
+                          WS_CHILD | WS_VISIBLE,
+                          120, 20, 80, 80,
+                          hwnd, (HMENU) 2, NULL, NULL);
+            break;
+
+        case WM_DESTROY:
+    
+            PostQuitMessage(0);
+            return 0; 
+    }
+
+    return DefWindowProcW(hwnd, msg, wParam, lParam);
+}
+
+LRESULT CALLBACK PanelProc(HWND hwnd, UINT msg, 
+    WPARAM wParam, LPARAM lParam) {
+    
+    switch(msg) {
+  
+        case WM_LBUTTONUP:
+    
+            MessageBeep(MB_OK);
+            break;    
+    }
+
+    return DefWindowProcW(hwnd, msg, wParam, lParam);
+}
+
+void RegisterRedPanelClass(void) {
+
+    HBRUSH hbrush = CreateSolidBrush(RGB(255, 0, 0));
+
+    WNDCLASSW rwc = {0};
+    
+    rwc.lpszClassName = L"RedPanelClass";
+    rwc.hbrBackground = hbrush;
+    rwc.lpfnWndProc   = PanelProc;
+    rwc.hCursor       = LoadCursor(0, IDC_ARROW);
+    RegisterClassW(&rwc); 
+}
+
+void RegisterBluePanelClass(void) {
+
+    HBRUSH hbrush = CreateSolidBrush(RGB(0, 0, 255));
+
+    WNDCLASSW rwc = {0};
+    
+    rwc.lpszClassName = L"BluePanelClass";
+    rwc.hbrBackground = hbrush;
+    rwc.lpfnWndProc   = PanelProc;
+    rwc.hCursor       = LoadCursor(0, IDC_ARROW);
+
+    RegisterClassW(&rwc);
+}