c++ - "cannot open output file filename.exe: Permission denied"

Question

我刚刚学习了 C++，我正在尝试使用 windows.h header 制作一个程序。我正在使用 Dev-C++ 编译器，但出现三个错误，我找不到解决方案。

这些是错误:

cannot open output file filename.exe: Permission denied
[Error] ld returned 1 exit status recipe for target 'filename.exe' failed

这是我的代码:

#include &#60windows.h&$62
#include &#60iostream&#62
#include &#60fstream&#62
#include &#60string&#62
#include &#60vector&#62
using namespace std;

HWND textfield;
/* This is where all the input to the window goes to */
LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
switch(Message) {
    case WM_CREATE:

            CreateWindow("STATIC",
            "DocJoin Document Combiner",
            WS_VISIBLE | WS_CHILD | WS_BORDER,
            20,20,300,25,
            hwnd,NULL,NULL,NULL);
            break;

    /* Upon destruction, tell the main thread to stop */
    case WM_DESTROY: {
        PostQuitMessage(0);
        break;
    }

    /* All other messages (a lot of them) are processed using default procedures */
    default:
        return DefWindowProc(hwnd, Message, wParam, lParam);
}
return 0;
}

/* The 'main' function of Win32 GUI programs: this is where execution starts */
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int     nCmdShow) {
WNDCLASSEX wc; /* A properties struct of our window */
HWND hwnd; /* A 'HANDLE', hence the H, or a pointer to our window */
MSG Msg; /* A temporary location for all messages */

/* zero out the struct and set the stuff we want to modify */
memset(&wc,0,sizeof(wc));
wc.cbSize        = sizeof(WNDCLASSEX);
wc.lpfnWndProc   = WndProc; /* This is where we will send messages to */
wc.hInstance     = hInstance;
wc.hCursor       = LoadCursor(NULL, IDC_ARROW);

/* White, COLOR_WINDOW is just a #define for a system color, try Ctrl+Clicking it */
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszClassName = "WindowClass";
wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION); /* Load a standard icon */
wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION); /* use the name "A" to use the project icon */

if(!RegisterClassEx(&wc)) {
    MessageBox(NULL, "Window Registration Failed!","Error!",MB_ICONEXCLAMATION|MB_OK);
    return 0;
}

hwnd = CreateWindowEx(WS_EX_CLIENTEDGE,"WindowClass","DocJoin",WS_VISIBLE|WS_OVERLAPPEDWINDOW,
    CW_USEDEFAULT, /* x */
    CW_USEDEFAULT, /* y */
    683, /* width */
    730, /* height */
    NULL,NULL,hInstance,NULL);

if(hwnd == NULL) {
    MessageBox(NULL, "Window Creation Failed!","Error!",MB_ICONEXCLAMATION|MB_OK);
    return 0;
}

/*
    This is the heart of our program where all input is processed and 
    sent to WndProc. Note that GetMessage blocks code flow until it receives something, so
    this loop will not produce unreasonably high CPU usage
*/
while(GetMessage(&Msg, NULL, 0, 0) > 0) { /* If no error is received... */
    TranslateMessage(&Msg); /* Translate key codes to chars if present */
    DispatchMessage(&Msg); /* Send it to WndProc */
}
return Msg.wParam;

这是 Makefile.win:

#项目:项目名称

# Dev-C++ 5.6.3 创建的 Makefile

CPP      = g++.exe
CC       = gcc.exe
WINDRES  = windres.exe
OBJ      = main.o
LINKOBJ  = main.o
LIBS     = -L"[...]" -L"[...]" -static-libgcc -mwindows -g3
INCS     = -I"[...]" -I"[...]" -I"[...]"
CXXINCS  = -I"[..]" -I"[...]" -I"[...]" -I"[...]"
BIN      = filename.exe
CXXFLAGS = $(CXXINCS) -g3
CFLAGS   = $(INCS) -g3
RM       = rm.exe -f

.PHONY: all all-before all-after clean clean-custom

all: all-before $(BIN) all-after

clean: clean-custom
${RM} $(OBJ) $(BIN)

$(BIN): $(OBJ)
$(CPP) $(LINKOBJ) -o $(BIN) $(LIBS)

main.o: main.cpp
$(CPP) -c main.cpp -o main.o $(CXXFLAGS)

我花了 3 个小时进行研究和故障排除，但我被难住了。这是我第一次使用 C++ 编译器，这意味着这是我的第一个程序。

Answer 1

您必须更改文件位置。

注意:不要将文件保存在 Microsoft Windows 中的 Program Files 和 Program Files (x86) 中。

您可以使用其他路径，例如 C:\USER\.....