PXC_SetTextLeading replying Bad DLL calling convention - VB6

[NBachus]

When calling the function PXC_SetTextLeading with the following declaration and call method, VB6 shows the error dialog of "Bad DLL calling convention". Is there something that I am doing wrong?

Code Here:

Public Declare Function PXC_SetTextLeading Lib "pxclib40.dll" (ByVal content As Long, ByVal Leading As Double, ByVal oldLeading As Double) As Long

hr = PXC_SetTextLeading(hDstPage, TextElement.Leading, 0)

[Lzcat - Tracker Supp]

C++ declaration is

Code: Select all

PDFXCLIB_API	HRESULT PXC_API PXC_SetTextScaling(_PXCContent* content, double scale, double* oldscale);

so yours should be

Code: Select all

Public Declare Function PXC_SetTextLeading Lib "pxclib40.dll" (ByVal content As Long, ByVal Leading As Double, ByRef oldLeading As Double) As Long

Dim OldLeading As Double
hr = PXC_SetTextLeading(hDstPage, TextElement.Leading, OldLeading)

[NBachus]

Thanks! Replacing the third parameter with ByRef instead of ByVal fixed this issue.

[John - Tracker Supp]

Excellent news - thanks for coming back