ICMProgressProcCallback
InflateRect
InSendMessage
InSendMessageEx
InsertMenu
InsertMenuItem
InstallColorProfile
InstallNewDevice
IntersectClipRect
IntersectRect
IsCharAlpha
IsCharAlphaNumeric
IsCharLower
IsCharUpper
IsChild
IsClipboardFormatAvailable
IsColorProfileTagPresent
IsColorProfileValid
IsDebuggerPresent
IsDialogMessage
IsDlgButtonChecked
IsGUIThread
IsIconic
IsMenu
IsProcessInJob
IsRectEmpty
IsWindow
IsWindowEnabled
IsWindowUnicode
IsWindowVisible
IsZoomed