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WTNCA Values

Specifies flags that modify window visual style attributes. Use one, or a bitwise combination of the following values.

Constant/value Description
WTNCA_NODRAWCAPTION
0x00000001
Prevents the window caption from being drawn.
WTNCA_NODRAWICON
0x00000002
Prevents the system icon from being drawn.
WTNCA_NOSYSMENU
0x00000004
Prevents the system icon menu from appearing.
WTNCA_NOMIRRORHELP
0x00000008
Prevents mirroring of the question mark, even in right-to-left (RTL) layout.
WTNCA_VALIDBITS
A mask that contains all the valid bits.

Requirements

Requirement Value
Minimum supported client
Windows Vista [desktop apps only]
Minimum supported server
Windows Server 2008 [desktop apps only]
Header
Uxtheme.h

See also

Reference

WTA_OPTIONS

SetWindowThemeNonClientAttributes