{{DISPLAYTITLE:_LOADIMAGE}} The [[_LOADIMAGE]] function loads an image into memory and returns valid [[LONG]] image handle values that are less than -1. {{PageSyntax}} :{{Parameter|handle&}} = [[_LOADIMAGE]]({{Parameter|filename$}}[, {{Parameter|mode%}}]) {{PageParameters}} *{{Parameter|filename$}} is literal or variable [[STRING]] file name value. *Optional {{Parameter|mode%}} [[INTEGER]] values can be: **32 = 32-bit **33 = hardware image {{PageDescription}} *Various common image file formats supported, like BMP, JPG, PNG, etc. A path can also be given. *The {{Parameter|mode%}} can designate 32-bit color or 33 ('''version 1.000 and up'''). Omit to use the current graphic screen settings. *Mode 33 images are '''hardware''' accelerated and are created using [[_LOADIMAGE]] or [[_COPYIMAGE]] ('''version 1.000 and up'''). *Loaded images can be read invisibly using [[POINT]]. Image coordinates start at 0 up to the [[_WIDTH (function)|_WIDTH]] - 1 and [[_HEIGHT]] - 1. *Images can be made into a program [[SCREEN (statement)|SCREEN]] or page adopting the size and palette settings or placed using [[_PUTIMAGE]]. *Returns -1 as an invalid handle if it can't load the image. Valid [[LONG]] handle returns are less than -1 ({{Parameter|handle&}} < -1). *Valid images only need to be loaded once. The handle can be used repeatedly until freed. *'''Images are not deallocated when the [[SUB]] or [[FUNCTION]] they are created in ends. Free them with [[_FREEIMAGE]].''' {{PageErrors}} *Some picture file images may not load when a {{Parameter|mode%}} value is designated. Try loading it without a {{Parameter|mode%}} designation. *'''It is important to free unused or discarded images with [[_FREEIMAGE]] to prevent CPU memory overflow errors.''' *'''In text-only [[SCREEN]] 0, {{Parameter|mode%}} 32 must be specified.''' When loading an [[_ICON]] image use 32 for the {{Parameter|mode%}} too. {{PageExamples}} ''Example 1:'' To display an image in 32-bit color using its resolution as a program screen: {{CodeStart}} '' '' i& = {{Cl|_LOADIMAGE}}("mypic.jpg", 32) {{Cl|SCREEN (statement)|SCREEN}} i& '' '' {{CodeEnd}} ''Example 2:'' [[DRAW]]ing and rotating an image 360 degrees using Turn Angle. [[POINT]] is used to read the invisible image source. {{CodeStart}} {{Cl|SCREEN (statement)|SCREEN}} {{Cl|_NEWIMAGE}}(800, 600, 32) img& = {{Cl|_LOADIMAGE}}("QB64.PNG") 'load the image file to be drawn wide% = {{Cl|_WIDTH (function)|_WIDTH}}(img&): deep% = {{Cl|_HEIGHT}}(img&) TLC$ = "BL" + {{Cl|STR$}}(wide% \ 2) + "BU" + {{Cl|STR$}}(deep% \ 2) 'start draw at top left corner RET$ = "BD BL" + {{Cl|STR$}}(wide%) 'return to left side of image {{Cl|_SOURCE}} img& {{Cl|_DEST}} 0 DO {{Cl|FOR...NEXT|FOR}} angle% = 0 {{Cl|TO}} 360 {{Cl|STEP}} 15 {{Cl|CLS}} {{Cl|DRAW}} "BM400, 300" + "TA=" + {{Cl|VARPTR$}}(angle%) + TLC$ {{Cl|FOR...NEXT|FOR}} y = 0 {{Cl|TO}} deep% - 1 {{Cl|FOR...NEXT|FOR}} x = 0 {{Cl|TO}} wide% - 1 {{Cl|DRAW}} "C" + {{Cl|STR$}}({{Cl|POINT}}(x, y)) + "R1" 'color and DRAW each pixel {{Cl|NEXT}} {{Cl|DRAW}} RET$ {{Cl|NEXT}} {{Cl|_DISPLAY}} 'NOTE: CPU usage will be HIGH! {{Cl|NEXT}} {{Cl|LOOP}} {{Cl|UNTIL}} {{Cl|INKEY$}} > "" '' '' {{CodeEnd}} {{small|Code by Ted Weissgerber}} :''NOTE:'' Speed varies with image size. ===More examples=== *[[SAVEIMAGE]] (QB64 Image to Bitmap SUB by Galleon) *[[Program ScreenShots]] (Member-contributed program for legacy screen modes) *[[ThirtyTwoBit SUB]] (QB64 Image area to bitmap) {{PageSeeAlso}} *[[_FREEIMAGE]], [[_ICON]] *[[_PUTIMAGE]], [[_MAPTRIANGLE]] *[[_NEWIMAGE]], [[_COPYIMAGE]] *[[_PRINTIMAGE]] (printer) *[[_PALETTECOLOR (function)]], [[_COPYPALETTE]], [[_ICON]] *[[SCREEN (statement)]] *[[Hardware images]] *[[Bitmaps]], [[Icons and Cursors]], [[GIF Images]] {{PageNavigation}}