UC知道CreateWindowEx总是失败！！！
来源：百度知道 编辑：UC知道 时间：2024/05/25 12:02:21
调试发现，hwnd总是为NULL，谁来说一下为什么？代码如下：
#include "windows.h"
TCHAR szWindowName[] = TEXT("winc");
TCHAR szClassName[] = TEXT("class");
TCHAR szText[] = TEXT("I will check how this perform.");
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
WNDCLASSEX wcex;
HWND hwnd;
MSG msg;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.hIcon = LoadIcon(hInstance, IDI_APPLICATION);
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.hIconSm = LoadIcon(hInstance, IDI_APPLICATION);
wcex.lpszClassName = szClassName;
wcex.hCursor = LoadCursor(NULL,
#include "windows.h"
TCHAR szWindowName[] = TEXT("winc");
TCHAR szClassName[] = TEXT("class");
TCHAR szText[] = TEXT("I will check how this perform.");
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
WNDCLASSEX wcex;
HWND hwnd;
MSG msg;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.hIcon = LoadIcon(hInstance, IDI_APPLICATION);
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.hIconSm = LoadIcon(hInstance, IDI_APPLICATION);
wcex.lpszClassName = szClassName;
wcex.hCursor = LoadCursor(NULL,
建议你在CreateWindowEx后面加个GetLastError来看看返回值是啥~~~
另外……你用class这个名称注册，RegisterClassEx成功了吗？？
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你是说CreateWindowEx返回为NULL，跟在它后面调用GetLastError返回0？？不可能吧……GetLastError返回0就表示之前的操作成功啊