C++ SDL2 blitting BMP文件
当前正在尝试通过SDL2在窗口上显示BMP文件 这是我的main.cpp文件:C++ SDL2 blitting BMP文件,c++,sdl-2,game-development,C++,Sdl 2,Game Development,当前正在尝试通过SDL2在窗口上显示BMP文件 这是我的main.cpp文件: `#include "pch.h" #include <iostream> #include<SDL.h> using namespace std; int main(int argc, char* args[]) { bool run=true; sdl a; if (a.init() == false) {
`#include "pch.h"
#include <iostream>
#include<SDL.h>
using namespace std;
int main(int argc, char* args[])
{
bool run=true;
sdl a;
if (a.init() == false)
{
cout << "SDL not working" << endl;
return 0;
}
else
if (a.screendisplay() == false)
{
cout << "Enable to open the window" << endl;
return 0;
}
else
if (a.loadmedia() == false)
{
cout << "Unable to load the image" << endl << SDL_GetError()<<endl;
return 0;
}
else
a.imageprocessing();
SDL_Delay(2000);
a.quit();
return 0;
}`.
#include "pch.h"
using namespace std;
bool sdl::init()
{
bool sucess = true;
if (SDL_Init(SDL_INIT_VIDEO) <0)
{
cout << "SDL not Working properply" << endl;
return false;
}
else return true;
};
bool sdl::screendisplay()
{
bool sucess;
Window = SDL_CreateWindow("SDL Tutorial", 0, 0,640, 280, SDL_WINDOW_SHOWN);
if (Window = NULL)
{
return sucess = false;
}
else
screenSurface= SDL_GetWindowSurface(Window);
return sucess = true;
};
bool sdl::loadmedia()
{
bool success = true;
gsurface = SDL_LoadBMP("asd.bmp");
if (gsurface == NULL)
{
success = false;
}
return success;
};
bool sdl::imageprocessing()
{
bool success = true;
if (SDL_BlitSurface(gsurface, NULL, screenSurface, NULL) < 0)
{
return success = false;
}
else
SDL_UpdateWindowSurface(Window);
SDL_Delay(2000);
return success;
};
bool sdl::quit()
{
bool sucess;
SDL_DestroyWindow(Window);
SDL_Quit();
return sucess = true;
};
Pch.cpp文件:
`#include "pch.h"
#include <iostream>
#include<SDL.h>
using namespace std;
int main(int argc, char* args[])
{
bool run=true;
sdl a;
if (a.init() == false)
{
cout << "SDL not working" << endl;
return 0;
}
else
if (a.screendisplay() == false)
{
cout << "Enable to open the window" << endl;
return 0;
}
else
if (a.loadmedia() == false)
{
cout << "Unable to load the image" << endl << SDL_GetError()<<endl;
return 0;
}
else
a.imageprocessing();
SDL_Delay(2000);
a.quit();
return 0;
}`.
#include "pch.h"
using namespace std;
bool sdl::init()
{
bool sucess = true;
if (SDL_Init(SDL_INIT_VIDEO) <0)
{
cout << "SDL not Working properply" << endl;
return false;
}
else return true;
};
bool sdl::screendisplay()
{
bool sucess;
Window = SDL_CreateWindow("SDL Tutorial", 0, 0,640, 280, SDL_WINDOW_SHOWN);
if (Window = NULL)
{
return sucess = false;
}
else
screenSurface= SDL_GetWindowSurface(Window);
return sucess = true;
};
bool sdl::loadmedia()
{
bool success = true;
gsurface = SDL_LoadBMP("asd.bmp");
if (gsurface == NULL)
{
success = false;
}
return success;
};
bool sdl::imageprocessing()
{
bool success = true;
if (SDL_BlitSurface(gsurface, NULL, screenSurface, NULL) < 0)
{
return success = false;
}
else
SDL_UpdateWindowSurface(Window);
SDL_Delay(2000);
return success;
};
bool sdl::quit()
{
bool sucess;
SDL_DestroyWindow(Window);
SDL_Quit();
return sucess = true;
};
#包括“pch.h”
使用名称空间std;
boolsdl::init()
{
布尔成功=真;
如果(SDL_Init(SDL_Init_VIDEO)我认为问题出在您的screensdisplay()
函数中:
bool sdl::screendisplay()
{
bool sucess;
Window = SDL_CreateWindow("SDL Tutorial", 0, 0,640, 280, SDL_WINDOW_SHOWN);
if (Window = NULL) // <- Right here
{
return sucess = false;
}
else
screenSurface= SDL_GetWindowSurface(Window);
return sucess = true;
};
boolsdl::screensdisplay()
{
布尔成功;
Window=SDL_CreateWindow(“SDL教程”,0,0640,280,显示SDL_窗口);
if(Window=NULL)//SDL\u BlitSurface()
返回什么值?这可能会告诉您问题所在。