NMPGCALCSIZE structure (commctrl.h)

Contains and receives information that the pager control uses to calculate the scrollable area of the contained window. It is used with the PGN_CALCSIZE notification.

Syntax

C++

typedef struct {
  NMHDR hdr;
  DWORD dwFlag;
  int   iWidth;
  int   iHeight;
} NMPGCALCSIZE, *LPNMPGCALCSIZE;

Members

hdr

Type: NMHDR

NMHDR structure that contains information about the notification.

dwFlag

Type: DWORD

Value that indicates which dimension is being requested. This will be one of the following values:

Value	Meaning
PGF_CALCHEIGHT	The height of the scrollable area is being requested. The height must be placed in the iHeight member before returning from the notification.
PGF_CALCWIDTH	The width of the scrollable area is being requested. The width must be placed in the iWidth member before returning from the notification.

iWidth

Type: int

Receives the desired width of the scrollable area, in pixels.

iHeight

Type: int

Receives the desired height of the scrollable area, in pixels.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	commctrl.h