我正在使用 msvc 编译器创建窗口。出现链接错误,但问题很难解决,因为我对vscode不熟悉
#include <windows.h>
#pragma comment(linker, "/entry:wWinMainCRTStartup /subsystem:console")
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
PWSTR pCmdLine, int nCmdShow) {
MSG msg;
HWND hwnd;
WNDCLASSW wc;
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.lpszClassName = L"Window";
wc.hInstance = hInstance;
wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
wc.lpszMenuName = NULL;
wc.lpfnWndProc = WndProc;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
RegisterClassW(&wc);
hwnd = CreateWindowW(wc.lpszClassName, L"Window",
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
100, 100, 350, 250, NULL, NULL, hInstance, NULL);
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while (GetMessage(&msg, NULL, 0, 0)) {
DispatchMessage(&msg);
}
return (int) msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
switch(msg) {
case WM_DESTROY:
PostQuitMessage(0);
break;
}
return DefWindowProcW(hwnd, msg, wParam, lParam);
}
我已经确认在使用g++时不保存编译时也会出现类似的错误,但在我的例子中是msvc。 对于 msvc,它在 2019 年通过 Developer power shell 使用。
您链接到控制台 sybsystem 选项,但您缺少
main
功能。控制台应用程序以 main
. 开头
要么创建一个
main
函数,要么与“Windows”子系统链接以从 WinMain
开始。
也许根本不需要
/entry:wWinMainCRTStartup
。