显示器的代码编程取决于您想要实现的功能以及您使用的编程语言和库。以下是一些常见场景和相应的代码示例:
打开显示器
```c
include
int main() {
HDC hDC = GetDC(NULL);
if (hDC == NULL) {
printf("Failed to get device context.\n");
return 1;
}
int result = OpenMonitor(hDC);
if (result != 0) {
printf("Failed to open monitor.\n");
return 1;
}
printf("Monitor opened successfully.\n");
return 0;
}
```
设置分辨率
```c
include
int main() {
DEVMODE dm;
memset(&dm, 0, sizeof(dm));
dm.dmSize = sizeof(dm);
dm.dmPelsWidth = 1920; // 设置宽度
dm.dmPelsHeight = 1080; // 设置高度
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
int result = ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
if (result != 0) {
printf("Failed to change display settings.\n");
return 1;
}
printf("Display settings changed successfully.\n");
return 0;
}
```
获取当前显示器的分辨率
```c
include
int main() {
int m_iCurScrWidth = GetSystemMetrics(SM_CXSCREEN);
int m_iCurScrHeight = GetSystemMetrics(SM_CYSCREEN);
printf("Current screen width: %d\n", m_iCurScrWidth);
printf("Current screen height: %d\n", m_iCurScrHeight);
return 0;
}
```
移动窗口位置
```c
include
int main() {
MoveWindow(0, 0, m_iCurScrWidth, m_iCurScrHeight, TRUE);
ModifyStyle(WS_CAPTION, 0, 0); // 取消标题栏
return 0;
}
```
获取显示器数量
```c
include
int main() {
int monitorCount = GetSystemMetrics(SM_CMONITORS);
printf("Number of monitors: %d\n", monitorCount);
return 0;
}
```
获取显示器的相对位置
```c
include
void GetScreenRect(int ScreenNo, RECT *rect) {
BOOL flag;
DISPLAY_DEVICE dd;
ZeroMemory(&dd, sizeof(dd));
dd.cb = sizeof(dd);
flag = EnumDisplayDevices(NULL, ScreenNo, &dd, 0);
if (!flag) return;
DEVMODE dm;
ZeroMemory(&dm, sizeof(dm));
dm.dmSize = sizeof(dm);
flag = EnumDisplaySettings(dd.DeviceName, &dm, rect);
if (!flag) return;
}
```