我想在Win 7如何在使用gcc編譯win32項目時鏈接到庫?
的代碼用gcc編譯一個基本的問候詞WinForm應用程序是這樣的:
/*
WINHELLO.C
"Hello, world!", Win32 style.
*/
#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
/* WinMain(), our entry point */
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR szCmdLine, int iCmdShow) {
static char szAppName[] = "winhello";
HWND hwnd;
MSG msg;
WNDCLASSEX wndclass;
/* Fill in WNDCLASSEX struct members */
wndclass.cbSize = sizeof(wndclass);
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
wndclass.lpszClassName = szAppName;
wndclass.lpszMenuName = NULL;
/* Register a new window class with Windows */
RegisterClassEx(&wndclass);
/* Create a window based on our new class */
hwnd = CreateWindow(szAppName, "Hello, world!",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL);
/* Show and update our window */
ShowWindow(hwnd, iCmdShow);
UpdateWindow(hwnd);
/* Retrieve and process messages until we get WM_QUIT */
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg); /* for certain keyboard messages */
DispatchMessage(&msg); /* send message to WndProc */
}
/* Exit with status specified in WM_QUIT message */
return msg.wParam;
}
/* Window procedure */
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) {
PAINTSTRUCT ps;
HDC hdc;
/* Switch according to what type of message we have received */
switch (iMsg) {
case WM_PAINT:
/* We receive WM_PAINT every time window is updated */
hdc = BeginPaint(hwnd, &ps);
TextOut(hdc, 100, 100, "Hello, world!", 13);
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
/* Window has been destroyed, so exit cleanly */
PostQuitMessage(0);
return 0;
}
/* Send any messages we don't handle to default window procedure */
return DefWindowProc(hwnd, iMsg, wParam, lParam);
}
我給編譯器的命令是gcc C:\Users\Bobby\Desktop\myfile.c
好,它尋找庫:
C:\Users\Bobby\desktop>gcc C:\Users\Bobby\Desktop\myfile.c
C:\Users\Bobby\AppData\Local\Temp\ccT0bq97.o:myfile.c:(.text+0x88): undefined reference to `[email protected]'
C:\Users\Bobby\AppData\Local\Temp\ccT0bq97.o:myfile.c:(.text+0x1db): undefined reference to `[email protected]'
collect2: ld returned 1 exit status
PS C:\Users\Scruffy\desktop> .\build.bat
C:\Users\Bobby\desktop>gcc C:\Users\Bobby\Desktop\myfile.c -I Gdi32.lib
C:\Users\Bobby\AppData\Local\Temp\ccylV5js.o:myfile.c:(.text+0x88): undefined reference to `[email protected]'
C:\Users\Bobby\AppData\Local\Temp\ccylV5js.o:myfile.c:(.text+0x1db): undefined reference to `[email protected]'
collect2: ld returned 1 exit status
PS C:\Users\Bobby\desktop> C:\MinGW\
我做了一些Google搜索,以及我發現這第一個[email protected]
位於名爲Gdi32.lib的文件中。所以我搜索了我的硬盤,並通過MinGW找不到它。 Lib在哪裏找到這個功能以及鏈接到它的方式是什麼?此外,我認爲我必須鏈接到[email protected]
感謝。 gcc在哪裏找到這些功能? –
不幸的是,在這種情況下,文檔沒有多大幫助。在Windows開發中,您可以擁有子系統控制檯和Windows窗口應用程序。我相信,大多數人在他們搜索「如何在我的Win32應用程序中擺脫這個控制檯窗口」時,第一次瞭解它。我想不出任何其他晦澀難懂的非常有用的信息。那麼,如果你有與char類型相關的問題,請記住'-DUNICODE'和'-D_UNICODE'。 – aib