我需要从Delphi中的PSafeArray
中读取数据。PSafeArray
由用C#开发的DLL中实现的方法返回。此方法返回二维字符串数组string[,]
。如何在Delphi中读取这样的PSafeArray
结果?
最佳答案
您必须使用SafeArrayGetLBound
,SafeArrayGetUBound
,SafeArrayGetElement
函数。
试试这个样本
var
LSafeArray: PSafeArray;
LBound, UBound, I: LongInt;
LYBound, UYBound, J: LongInt;
Index: array [0..1] of Integer;
LData: OleVariant;
begin
//get the PSafeArray
LSafeArray := GetArray;// GetArray is your own function
//get the bounds of the first dimension
SafeArrayGetLBound(LSafeArray, 1, LBound);
SafeArrayGetUBound(LSafeArray, 1, UBound);
//get the bounds of the second dimension
SafeArrayGetLBound(LSafeArray, 2, LYBound);
SafeArrayGetUBound(LSafeArray, 2, UYBound);
//iterate over the array
for I := LBound to UBound do
for J := LYBound to UYBound do
begin
//set the index of the element to get
Index[0]:=I;
Index[1]:=J;
SafeArrayGetElement(LSafeArray, Index, LData);
//do something with the data
Memo1.Lines.Add(LData);
end;
SafeArrayDestroy(LSafeArray);
end;
关于c# - 如何从多维PSafeArray获取数据?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/13097395/