Microsoft异常C ++：_com_error在内存位置

Question

来渲染纹理的同时遇到了这个奇怪的错误

错误消息是：

fary tail.exe中的0x00007ffca9067788在0x00007ffca9067788中生产。Exe：Microsoft C ++例外：_com_error在存储器位置0x00000000000000F86C0FED60

60

一个：

函数

，ID3D11DEVICE1 :: CreatePixelShader：参数不正确

明显只有在我使用函数sdl_geterror（）检查纹理是否已加载时，特别是这些代码行：

SDL_GetError()

{

if(SDL_RenderTexture(renderer, fairy, NULL, NULL)

trangely，当我检查相同的条件时，它们不会弹出在窗口和装饰处，控制台发送这些错误消息。

这里是更好理解的完整代码：

  SDL_Log("IMG Error: %s", SDL_GetError());

}

班路仅使用错误检查以获取错误，意味着当某些内容未正确返回时。

//Header file mygame.h

#pragma once

#include <iostream>
#include "SDL3/SDL.h"
#include "SDL_image.h"

class Game
{
public:
    Game();
    ~Game();

    void init(const char*, int xpos, int ypos, int width, int height, bool fullscreen);
    void handle_events();
    void update();
    void render();
    void clean();

    bool running();

private:
    bool is_running = NULL;
    SDL_Window* window = NULL;
    SDL_Renderer* renderer = NULL;

//Source File for the function definitions of the above header file mygame.cpp

#include "mygame.h"

SDL_Texture* fairy = NULL;

Game::Game() {}
Game::~Game() {}

//Initialization function

void Game::init(const char* title, int xpos, int ypos, int width, int height, bool fullscreen)
{
    int flags = 0;
    if (fullscreen)
    {
        flags = SDL_WINDOW_FULLSCREEN;
    }
    if(SDL_Init(SDL_INIT_VIDEO) < 0)
    {
        std::cout << "Error: Couldn't initialize SDL!" << std::endl;
        is_running = false;
        return;
    }

//Creating Window

    window = SDL_CreateWindow(title, width, height, flags);
    if(window)
    {
        std::cout << "Window Created!";
    }

//Creating Renderer

    renderer = SDL_CreateRenderer(window, NULL);
    if(renderer)
    {
        std::cout << "Renderer Created" << std::endl;
    }

is_running = true;

fairy = IMG_LoadTexture(renderer, "assets/hadita.png");
} 

void Game::handle_events()
{
    SDL_Event event;
    SDL_PollEvent(&event);
    switch(event.type)
    {
         case SDL_EVENT_QUIT:
            is_running = false;

         default:
             break;
    }
}

void Game::update(){}

void Game::render()
{
    SDL_RenderClear(renderer);
    if(SDL_RenderTexture(renderer, fairy))
    {
        SDL_Log("IMG Render Error: %s", SDL_GetError());
    }
    SDL_RenderPresent(renderer);
}

void Game:clean()
{
    SDL_DestroyWindow(window);
    SDL_DestroyRenderer(renderer);
    SDL_DestroyTexture(fairy);
    SDL_Quit();
    std::cout << "Game cleaned";
}

bool Game::running()
{
    return is_running;
}

//Now finally the main.cpp file where the game loop is

#include "mygame.h"

Game* game = nullptr;

int main(int argc, const char* argv[])
{
    game = new Game();
    game->init("A Fairy Tale", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 800, 600, false);
    while (game->running())
    {
        game->handle_events();
        game->update();
        game->render();
    }

game -> clean();

return 0;
}

如果正确返回为什么会出现错误，请这样想。

if (!SDL_RenderTexture(renderer, fairy)) { }

在此时给您最新的错误。

Answer 1