qt上位机调用dll
时间: 2024-01-20 18:03:58 浏览: 122
在QT上位机中调用DLL库可以通过以下步骤实现:
1. 导入DLL库:
```cpp
QLibrary library("./CSaleaeSocketApi.dll");
if (library.load()) {
// DLL库加载成功
}
```
2. 解析DLL库中的函数:
```cpp
typedef void (*SetCaptureSeconds)(int seconds);
typedef void (*Capture)();
typedef QString (*ExportAnalyzers)();
SetCaptureSeconds m_SetCaptureSeconds = (SetCaptureSeconds)library.resolve("SetCaptureSeconds");Capture m_Capture = (Capture)library.resolve("Capture");
ExportAnalyzers m_ExportAnalyzers = (ExportAnalyzers)library.resolve("ExportAnalyzers");
```
3. 调用DLL库中的函数:
```cpp
if (m_SetCaptureSeconds) {
m_SetCaptureSeconds(5);}
if (m_Capture) {
m_Capture();
}
if (m_ExportAnalyzers) {
QString file_name = m_ExportAnalyzers();
qDebug() << file_name;
}
```
请注意,以上代码仅为示例,具体的函数名和参数类型需要根据实际的DLL库进行调整。
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