这段代码应该刷新屏幕.请告诉我哪里错了

Question

据我所知，WriteConsole()函数将一个字符数组写入屏幕缓冲区。直到我试着做一个循环，它才开始工作。

#include <iostream>
#include <Windows.h>
int main() {
HANDLE hScreenBuffer;
hScreenBuffer = GetStdHandle(STD_OUTPUT_HANDLE);
char map[100];
LPDWORD number_of_chars_to_write;
for (int i = 0; i < 100; i++) {
map[i] = '#';
}
while (1) {

WriteConsole(
hScreenBuffer,
map,
100,
number_of_chars_to_write,
NULL
);
}
}

Answer 1

您的代码中有两个问题:

首先，正如评论中指出的，您需要使用WriteConsoleA，因为您写窄chars。

第二，您将未初始化的指针LPDWORD number_of_chars_to_write;传递给WriteConsole，这可能会导致崩溃。

这是正确的代码:

#include <iostream>
#include <Windows.h>
int main() {
HANDLE hScreenBuffer;
hScreenBuffer = GetStdHandle(STD_OUTPUT_HANDLE);
char map[100];
DWORD number_of_chars_to_write;
for (int i = 0; i < 100; i++) {
map[i] = '#';
}
while (1) {
WriteConsoleA(
hScreenBuffer,
map,
100,
&number_of_chars_to_write,
NULL
);
}
}