关于c语言图形界面程序中bmp图片的显示问题

光羽隹 2017-09-06 10:32:34

课程设计里想试着往程序里加载一张bmp图片（也不一定就必须得是bmp格式），因为是第一次研究这些东西，下面是我按照教程弄出来的一段代码，不知道为什么，打开程序后程序就直接一直未响应状态了，也不加载图片，事先设计的右键弹出菜单也用不了了，大神们帮我看看我这代码哪里有问题好么，在下才学浅薄，实在是不知道哪里出现了问题

LRESULT WINAPI WinProc(HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam)

{

   

	switch(Msg)

    {

     ...

  case WM_PAINT:

        PAINTSTRUCT ps;

        BeginPaint(hWnd, &ps);

        hDC= ps.hdc;

       	hMemdc = CreateCompatibleDC(hDC);

        bg = (HBITMAP)LoadImage(NULL, _T("1.bmp"), IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);

        SelectObject(hMemdc, bg);

        BitBlt(hDC, 0, 0, rect.right, rect.bottom, hMemdc, 0, 0, SRCCOPY);

     ...

}

 return DefWindowProc(hWnd,Msg,wParam,lParam);

...全文

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光羽隹 2017-09-07

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引用 3 楼 zhao4zhong1 的回复:

仅供参考：

#pragma comment(lib,"user32")
#pragma comment(lib,"gdi32")
#include <stdlib.h>
#include <conio.h>
#include <windows.h>
HWND WINAPI GetConsoleWindow();
void HideTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = FALSE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
void ShowTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = TRUE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
int main() {
    HWND  hwnd;
    HDC   hdc;
    HFONT hfont;
    HBITMAP hbm;
    HDC hdcBits;
    BITMAP bm;

    system("color F0");
    system("cls");
    HideTheCursor();
    hwnd  = GetConsoleWindow();
    hdc   = GetDC(hwnd);
    hbm=LoadImage(0,"C:\\Windows\\Soap Bubbles.bmp",IMAGE_BITMAP,0,0,LR_DEFAULTSIZE|LR_LOADFROMFILE);
    if (hbm) {
        hdcBits = CreateCompatibleDC(hdc);
        GetObject (hbm, sizeof(BITMAP), &bm);
        SelectObject(hdcBits,hbm);
        BitBlt(hdc,200,10,bm.bmWidth, bm.bmHeight,hdcBits,0,0,SRCCOPY);
        DeleteDC(hdcBits);
        DeleteObject(hbm);
    }
    hfont = CreateFont(24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "华文楷体");
    SelectObject(hdc,hfont);
    SetTextColor(hdc,RGB(255,255,255));
    SetBkMode(hdc,TRANSPARENT);
    TextOut(hdc,210,30,"这个背景是泡泡",14);
    DeleteObject(hfont);
    ReleaseDC(hwnd,hdc);
    getch();
    system("color 07");
    system("cls");
    ShowTheCursor();
    return 0;
}

这个问题我解决了，但是如果我要调用的是资源里引入的bmp图片的话又该怎么办呢？

光羽隹 2017-09-07

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引用 3 楼 zhao4zhong1 的回复:

仅供参考：

#pragma comment(lib,"user32")
#pragma comment(lib,"gdi32")
#include <stdlib.h>
#include <conio.h>
#include <windows.h>
HWND WINAPI GetConsoleWindow();
void HideTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = FALSE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
void ShowTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = TRUE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
int main() {
    HWND  hwnd;
    HDC   hdc;
    HFONT hfont;
    HBITMAP hbm;
    HDC hdcBits;
    BITMAP bm;

    system("color F0");
    system("cls");
    HideTheCursor();
    hwnd  = GetConsoleWindow();
    hdc   = GetDC(hwnd);
    hbm=LoadImage(0,"C:\\Windows\\Soap Bubbles.bmp",IMAGE_BITMAP,0,0,LR_DEFAULTSIZE|LR_LOADFROMFILE);
    if (hbm) {
        hdcBits = CreateCompatibleDC(hdc);
        GetObject (hbm, sizeof(BITMAP), &bm);
        SelectObject(hdcBits,hbm);
        BitBlt(hdc,200,10,bm.bmWidth, bm.bmHeight,hdcBits,0,0,SRCCOPY);
        DeleteDC(hdcBits);
        DeleteObject(hbm);
    }
    hfont = CreateFont(24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "华文楷体");
    SelectObject(hdc,hfont);
    SetTextColor(hdc,RGB(255,255,255));
    SetBkMode(hdc,TRANSPARENT);
    TextOut(hdc,210,30,"这个背景是泡泡",14);
    DeleteObject(hfont);
    ReleaseDC(hwnd,hdc);
    getch();
    system("color 07");
    system("cls");
    ShowTheCursor();
    return 0;
}

老师还在么？

赵4老师 2017-09-07

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百度搜相关关键字。

赵4老师 2017-09-06

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仅供参考：

#pragma comment(lib,"user32")
#pragma comment(lib,"gdi32")
#include <stdlib.h>
#include <conio.h>
#include <windows.h>
HWND WINAPI GetConsoleWindow();
void HideTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = FALSE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
void ShowTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = TRUE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
int main() {
    HWND  hwnd;
    HDC   hdc;
    HFONT hfont;
    HBITMAP hbm;
    HDC hdcBits;
    BITMAP bm;

    system("color F0");
    system("cls");
    HideTheCursor();
    hwnd  = GetConsoleWindow();
    hdc   = GetDC(hwnd);
    hbm=LoadImage(0,"C:\\Windows\\Soap Bubbles.bmp",IMAGE_BITMAP,0,0,LR_DEFAULTSIZE|LR_LOADFROMFILE);
    if (hbm) {
        hdcBits = CreateCompatibleDC(hdc);
        GetObject (hbm, sizeof(BITMAP), &bm);
        SelectObject(hdcBits,hbm);
        BitBlt(hdc,200,10,bm.bmWidth, bm.bmHeight,hdcBits,0,0,SRCCOPY);
        DeleteDC(hdcBits);
        DeleteObject(hbm);
    }
    hfont = CreateFont(24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "华文楷体");
    SelectObject(hdc,hfont);
    SetTextColor(hdc,RGB(255,255,255));
    SetBkMode(hdc,TRANSPARENT);
    TextOut(hdc,210,30,"这个背景是泡泡",14);
    DeleteObject(hfont);
    ReleaseDC(hwnd,hdc);
    getch();
    system("color 07");
    system("cls");
    ShowTheCursor();
    return 0;
}

光羽隹 2017-09-06

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引用 1 楼 tk2003 的回复:

"打开程序后程序就直接一直未响应状态了" ---主程序卡住，陷入死循环了这方面代码荒芜依旧，只能提这么点建议了

额，我的意思是我这个程序运行到bmp图形那一块才出现的问题，其余部分正常，因为我是刚加进去的这部分代码，加进去之前程序是能正常运作的

IT保安 2017-09-06

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"打开程序后程序就直接一直未响应状态了" ---主程序卡住，陷入死循环了这方面代码荒芜依旧，只能提这么点建议了

notEBfast 2017-09-06

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引用 4 楼 hzy_76 的回复:

不懂，仅凭猜测，你调用了BeginPaint，却没有EndPaint，这是要出事的。

额，EndPaint在下面，我没写出来

notEBfast 2017-09-06

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引用 3 楼 zhao4zhong1 的回复:

仅供参考：

#pragma comment(lib,"user32")
#pragma comment(lib,"gdi32")
#include <stdlib.h>
#include <conio.h>
#include <windows.h>
HWND WINAPI GetConsoleWindow();
void HideTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = FALSE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
void ShowTheCursor() {
    CONSOLE_CURSOR_INFO cciCursor;
    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (GetConsoleCursorInfo(hStdOut, &cciCursor)) {
        cciCursor.bVisible = TRUE;
        SetConsoleCursorInfo(hStdOut, &cciCursor);
    }
}
int main() {
    HWND  hwnd;
    HDC   hdc;
    HFONT hfont;
    HBITMAP hbm;
    HDC hdcBits;
    BITMAP bm;

    system("color F0");
    system("cls");
    HideTheCursor();
    hwnd  = GetConsoleWindow();
    hdc   = GetDC(hwnd);
    hbm=LoadImage(0,"C:\\Windows\\Soap Bubbles.bmp",IMAGE_BITMAP,0,0,LR_DEFAULTSIZE|LR_LOADFROMFILE);
    if (hbm) {
        hdcBits = CreateCompatibleDC(hdc);
        GetObject (hbm, sizeof(BITMAP), &bm);
        SelectObject(hdcBits,hbm);
        BitBlt(hdc,200,10,bm.bmWidth, bm.bmHeight,hdcBits,0,0,SRCCOPY);
        DeleteDC(hdcBits);
        DeleteObject(hbm);
    }
    hfont = CreateFont(24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "华文楷体");
    SelectObject(hdc,hfont);
    SetTextColor(hdc,RGB(255,255,255));
    SetBkMode(hdc,TRANSPARENT);
    TextOut(hdc,210,30,"这个背景是泡泡",14);
    DeleteObject(hfont);
    ReleaseDC(hwnd,hdc);
    getch();
    system("color 07");
    system("cls");
    ShowTheCursor();
    return 0;
}

这个报错呀，error C2440: '=' : cannot convert from 'void *' to 'struct HBITMAP__ *'