Display a declared image

Step 1Prepare a safe practice project#

Extract the archive into a new writable folder, separate from your own application. Open Image.mcproj in McBasic™. Keep every declared source, layout, resource and migration file together.

To reconstruct it yourself, create a DesktopApp project and add the files declared below. In the complete project, follow these steps as a guided rebuild: replace each named source file once and Check after all its procedures are present.

{
  "schemaVersion": 1,
  "projectId": "8a2bcd2e-9e2e-4f8c-8ca5-25a0d1b6d6f4",
  "name": "ImageSample",
  "kind": "DesktopApp",
  "language": {
    "dialect": "McBasic1",
    "requireExplicit": true,
    "compare": "Binary",
    "defaultArrayBase": 0
  },
  "application": {
    "bundleIdentifier": "com.mcbasic.samples.image",
    "version": "0.1.0",
    "buildNumber": "1",
    "startupFormId": "form-main",
    "shutdownMode": "OnStartupFormClosed"
  },
  "forms": [
    {
      "id": "form-main",
      "typeName": "frmMain",
      "layout": "Forms/frmMain.form.json",
      "code": "Forms/frmMain.bas"
    }
  ],
  "modules": [],
  "classes": [],
  "tests": [],
  "references": [],
  "resources": [
    {
      "name": "Logo",
      "path": "Resources/logo.png"
    }
  ],
  "targets": [
    "osx-arm64"
  ],
  "capabilities": []
}

Step 2Build the Form and set its properties#

frmMain

Select the Form first and set its properties. Add containers before their children. These are initial Designer values, not statements to paste into a procedure.

Step 3Connect the events explicitly#

frmMain

Step 4Enter the complete behavior#

Open the named source file. Enter declarations first, then every procedure. Expand a procedure for its full body, or copy the complete file. Helpers are required: do not stop after entering the first Click handler.

Forms/frmMain.bas

Enter these declarations at file scope, before the procedures.

Option Explicit

Private Sub Form_Load()
    imgLogo.Picture = Resources.Logo
    imgLogo.SizeMode = "Zoom"
    If imgLogo.Error = "" Then
        lblStatus.Caption = "Image loaded from project Resources."
    Else
        lblStatus.Caption = imgLogo.Error
    End If
End Sub

Private Sub cmdClose_Click()
    Unload Me
End Sub

Option Explicit

Private Sub Form_Load()
    imgLogo.Picture = Resources.Logo
    imgLogo.SizeMode = "Zoom"
    If imgLogo.Error = "" Then
        lblStatus.Caption = "Image loaded from project Resources."
    Else
        lblStatus.Caption = imgLogo.Error
    End If
End Sub

Private Sub cmdClose_Click()
    Unload Me
End Sub

Step 5Keep resources and storage reproducible#

Keep the following files at their declared relative paths. Apply migrations before the first query. Media and report resources must travel with the build.

Step 6Check, run and test the result#

Save all files and run Check. Resolve diagnostics before Run. Developer CLI users can work from the extracted folder:

mcbasic check Image.mcproj
mcbasic run Image.mcproj

Acceptance checklist

• Run with the declared resource present.
• Inspect the scaling behavior at the authored size.
• Build and verify the image in the built application.

Step 7Make one change and repeat the tests#

Replace the image resource with another permitted asset while keeping its logical identity.

Save a working Git checkpoint first. Change one behavior, Check again and repeat the acceptance checklist. Compare with the downloaded solution if a regression appears.