Win32: Simplify window class handling

By using window class atoms, we only need to mention each window class
name once, also removing the need to define _GLFW_WNDCLASSNAME.  It can
still be defined by the user as before.
This commit is contained in:
Camilla Löwy
2022-05-06 17:58:42 +02:00
parent 2ae3e0c8d7
commit a465c1c32e
3 changed files with 43 additions and 61 deletions
+34 -44
View File
@@ -1249,6 +1249,39 @@ static int createNativeWindow(_GLFWwindow* window,
DWORD style = getWindowStyle(window);
DWORD exStyle = getWindowExStyle(window);
if (!_glfw.win32.mainWindowClass)
{
WNDCLASSEXW wc = { sizeof(wc) };
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = windowProc;
wc.hInstance = _glfw.win32.instance;
wc.hCursor = LoadCursorW(NULL, IDC_ARROW);
#if defined(_GLFW_WNDCLASSNAME)
wc.lpszClassName = _GLFW_WNDCLASSNAME;
#else
wc.lpszClassName = L"GLFW30";
#endif
// Load user-provided icon if available
wc.hIcon = LoadImageW(GetModuleHandleW(NULL),
L"GLFW_ICON", IMAGE_ICON,
0, 0, LR_DEFAULTSIZE | LR_SHARED);
if (!wc.hIcon)
{
// No user-provided icon found, load default icon
wc.hIcon = LoadImageW(NULL,
IDI_APPLICATION, IMAGE_ICON,
0, 0, LR_DEFAULTSIZE | LR_SHARED);
}
_glfw.win32.mainWindowClass = RegisterClassExW(&wc);
if (!_glfw.win32.mainWindowClass)
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to register window class");
return GLFW_FALSE;
}
}
if (window->monitor)
{
MONITORINFO mi = { sizeof(mi) };
@@ -1282,7 +1315,7 @@ static int createNativeWindow(_GLFWwindow* window,
return GLFW_FALSE;
window->win32.handle = CreateWindowExW(exStyle,
_GLFW_WNDCLASSNAME,
MAKEINTATOM(_glfw.win32.mainWindowClass),
wideTitle,
style,
xpos, ypos,
@@ -1387,49 +1420,6 @@ static int createNativeWindow(_GLFWwindow* window,
return GLFW_TRUE;
}
// Registers the GLFW window class
//
GLFWbool _glfwRegisterWindowClassWin32(void)
{
WNDCLASSEXW wc;
ZeroMemory(&wc, sizeof(wc));
wc.cbSize = sizeof(wc);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = windowProc;
wc.hInstance = _glfw.win32.instance;
wc.hCursor = LoadCursorW(NULL, IDC_ARROW);
wc.lpszClassName = _GLFW_WNDCLASSNAME;
// Load user-provided icon if available
wc.hIcon = LoadImageW(GetModuleHandleW(NULL),
L"GLFW_ICON", IMAGE_ICON,
0, 0, LR_DEFAULTSIZE | LR_SHARED);
if (!wc.hIcon)
{
// No user-provided icon found, load default icon
wc.hIcon = LoadImageW(NULL,
IDI_APPLICATION, IMAGE_ICON,
0, 0, LR_DEFAULTSIZE | LR_SHARED);
}
if (!RegisterClassExW(&wc))
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to register window class");
return GLFW_FALSE;
}
return GLFW_TRUE;
}
// Unregisters the GLFW window class
//
void _glfwUnregisterWindowClassWin32(void)
{
UnregisterClassW(_GLFW_WNDCLASSNAME, _glfw.win32.instance);
}
GLFWbool _glfwCreateWindowWin32(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,