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48 API Function starting with letter I
Sort: Top 50 API | Top 50 Rated Rated API
InvertRgn
InvertRgn inverts the colors of all the pixels inside a region on a given device. The inverse of the pixels is calculated by doing a binary NOT operation on the RGB color value of each pixel. The function returns 0 if an error occured, or a non-zero value if successful. ...Hits: 4211 Rating:
(3.24) votes 2364
Category: Device
IsDestinationReachable
Determines if the specified destination can be reached and provides Quality of Connection (QOC) information for the destination....Hits: 6587 Rating:
(2.64) votes 1763
Category: Internet
IntersectRect
IntersectRect creates a rectangle based on the intersecting part of two other rectangles. The rectangular region where the two source rectangles overlap is the intersection rectangle. If one or both of the source rectangles are empty or there is no intersection, the function returns 0 and the lpDest...Hits: 5681 Rating:
(3.48) votes 1565
Category: Rectangle
InvertRect
InvertRect inverts the image inside a rectangular area on a device. The inverted colors are calculated by taking the binary NOT of each pixel's RGB color value inside the rectangle. The function returns a non-zero value if successful, or 0 if an error occured....Hits: 3788 Rating:
(2.63) votes 1066
Category: Rectangle
InitCommonControls
The InitCommonControls function ensures that the common control dynamic-link library (DLL) is loaded....Hits: 6674 Rating:
(2.17) votes 1018
Category: Objects
ImageList_Draw
The ImageList_Draw function draws an image list item in the specified device context....Hits: 4139 Rating:
(2.82) votes 572
Category: ImageList
InitiateSystemShutdown
The InitiateSystemShutdown function initiates a shutdown and optional restart of the specified computer....Hits: 6389 Rating:
(3.01) votes 623
Category: System
InternetCloseHandle
Closes a single Internet handle or a subtree of Internet handles....Hits: 4420 Rating:
(2.82) votes 1144
Category: Internet
InternetCombineUrl
Combines a base and relative URL into a single URL. The resultant URL will be canonicalized (see InternetCanonicalizeUrl)....Hits: 4255 Rating:
(3.50) votes 956
Category: Internet
IsTextUnicode
The IsTextUnicode function determines whether a buffer is likely to contain a form of Unicode text. The function uses various statistical and deterministic methods to make its determination, under the control of flags passed via lpi. When the function returns, the results of such tests are reported ...Hits: 6044 Rating:
(2.98) votes 851
Category: Text
InternetGetLastResponseInfo
Retrieves the last Microsoft® Win32® Internet function error description or server response on the thread calling this function....Hits: 9207 Rating:
(3.29) votes 797
Category: Internet
IntersectClipRect
The IntersectClipRect function creates a new clipping region from the intersection of the current clipping region and the specified rectangle....Hits: 2831 Rating:
(2.78) votes 420
Category: Rectangle
IsBadReadPtr
The IsBadReadPtr function verifies that the calling process has read access to the specified range of memory....Hits: 2717 Rating:
(3.00) votes 413
Category: Process
IsBadStringPtr
The IsBadStringPtr function verifies that the calling process has read access to a range of memory pointed to by a string pointer. ...Hits: 2901 Rating:
(2.84) votes 459
Category: Process
IsBadWritePtr
The IsBadWritePtr function verifies that the calling process has write access to the specified range of memory....Hits: 2766 Rating:
(2.90) votes 457
Category: Process
InternetGetConnectedStateEx
Retrieves the connected state of the specified Internet connection....Hits: 5254 Rating:
(3.25) votes 873
Category: Internet
IsChild
The IsChild function tests whether a window is a child window or descendant window of a specified parent window. A child window is the direct descendant of a specified parent window if that parent window is in the chain of parent windows; the chain of parent windows leads from the original overlappe...Hits: 3766 Rating:
(2.45) votes 918
Category: Window
ImageList_DrawEx
The ImageList_DrawEx function draws an image list item in the specified device context. The function uses the specified drawing style and blends the image with the specified color....Hits: 4033 Rating:
(2.78) votes 761
Category: ImageList
InitializeFlatSB
Initializes flat scroll bars for a particular window....Hits: 2883 Rating:
(2.66) votes 468
Category: ScroolBar
IsCharUpper
The IsCharUpper function determines whether a character is uppercase. This determination is based on the semantics of the language selected by the user during setup or by using Control Panel....Hits: 3219 Rating:
(2.59) votes 1325
Category: Character